The Wild Wild West - Season 2 Episode 18 : The Night of the Gypsy Peril 1969

West and Gordon are escorting the Sultan of Ramapur and his gift to the President, a sacred white elephant. Bandits intercept the train and steal the elephant, and the Sultan demands one million dollars in recompense. West follows the trail to a gypsy camp, where the elephant appears to have been colored grey as a disguise. Artie sneaks in as a peddler, and they try to recover the elephant. They soon discover that the elephant is not disguised, but instead is actually grey: it has been painted white and proclaimed sacred by the Sultan, who planned to extort the U.S. government all along. Confronted with the evidence, the Sultan is deported and the gypsies get to keep the elephant.